This course is a practical introduction to the technology of single-stage PET stretch blow molding. It gives participants in-depth instructions on how to set up and run the machine for optimal bottle quality.
Topics include:
– To make a good bottle we need a good preform: the need to start right
– Injection speeds, pressures, switch-over point
– Hot runner manifolds: design and control
– Update: Viscous heating, explanation and solutions
– How to control the cushion and what it means to the process
– Fast or slow injection and how it changes the blowing parameters
– The conditioning station: control of optimal wall distribution
– Stretch rods: Tip designs, adjustments
– First and second blow pressure: the secret of timing and how it relates to bottle wall thickness
– Common molding problems and their solutions
Who should attend?
Operators, processors, plant engineers that are new to single-stage molding, or who want to refresh their knowledge and gain new insights.